ok 3 reasons why any sorta download format wont work : must have some super copy protection, which as a dl is much harder to do. even disc are having trouble dowloads can be copied with the a simple click. same reason games are not put on memory cards (they wouldbe mass copied).
Secondly, i am not going to wait a month to dl hd movies. they are bigger than dvds some get up in the 40gb's. And until t1/2 is cheap no one will wait that long. i get about 300kbs. theres no way.
Thirdly, all ur doing is swapping 1 HDD for another HDD! High-Definition Disc - for Hard Disc Drive! it will cost the same ...more even considering ull have to buy a new hdd for every 3 movies. with a disc u get 1 movie 1 disc at 20-30$ and going down! (faster when all companys adopt 1) its called supply and demand; it only takes 1 company to make all the other companys drop their price. This is evident in Walmart(always low prices) and Sony's (puting the best blue ray player out at the cheapest price) tactics. So no, disc format is not dead and will not die until internet speeds are way faster and easy to pay for.
Dowloads are a thing of the past ...not the future.
